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Finding the Fourth Proportional to 620,998.52, 931,497.77 and 200,274.39

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Solution

The fourth proportional to 620,998.52, 931,497.77 and 200,274.39 is: 300,411.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,998.52 : 931,497.77 = 200,274.39 : x
  2. Step 2: Convert to fraction form
    620,998.52/931,497.77 = 200,274.39/x
  3. Step 3: Cross multiply
    620,998.52x = 931,497.77 × 200,274.39
  4. Step 4: Simplify right side
    620,998.52x = 186,555,148,173.80
  5. Step 5: Solve for x
    x = 186,555,148,173.80/620,998.52
  6. Step 6: Final answer
    x = 300,411.59

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.